Discrete analysis method for fracture simulation using structural elements

DOI
  • KURUMATANI Mao
    Department of Urban and Civil Engineering, Ibaraki University
  • TERADA Kenjiro
    International Research Institute of Disaster Science, Tohoku University
  • KYOYA Takashi
    Department of Civil and Environmental Engineering, Tohoku University
  • KATO Junji
    International Research Institute of Disaster Science, Tohoku University
  • Kashiyama Kazuo
    Department of Civil and Environmental Engineering, Chuo University

Bibliographic Information

Other Title
  • 破壊シミュレーションのための構造要素を用いた離散体解析法

Abstract

This paper proposes a new discrete analysis method for fracture simulation using structural elements based on the discrete element concept. The suggested structural elements are suitable for fracture simulations because the element stiffness is evaluated by means of relative displacements at the interface between discrete elements (particles). We first formulate the structural elements in consideration of the position and the angle of interface between discrete elements and discuss the integration of element stiffness. The fundamental properties for elastic problem are examined in chapter 3. The eigen-values and eigen-vectors of stiffness matrix are analyzed to investigate the relationship between basic deformation mode and integration order. Also the accuracy of the structural element for beam bending problem is assessed. Finally, after explaining the modeling of fracture in this paper, two representative numerical examples are presented to demonstrate the applicability to fracture simulations for structures involving multiple cohesive cracks.

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Details 詳細情報について

  • CRID
    1390001204472145792
  • NII Article ID
    130004851520
  • DOI
    10.11421/jsces.2013.20130010
  • ISSN
    13478826
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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